What sealant or caulk to use ?

Butyl or putty tape. For extra credit you can drape a bead of ProFlex RV caulk over the top half of the fitting flange. That is what I do.

Good luck with the fill tube. I hate those, they always leak at the ends where clamped. It's a poor design. Seems like I say that a lot about RV stuff. :)

poppin_fresh wrote:
Most of the items stuck on from the outside such as the water inlets, power cord cover, etc., are all sealed using butyl tape. It's basically just a putty that makes a seal between the trailer and whatever.

I replaced several items on my last trailer and used butyl tape to reseal them all as that was used by the manufacturer.

Thank you,

I'll see if I can get some

Jack L

poppin_fresh wrote:
Most of the items stuck on from the outside such as the water inlets, power cord cover, etc., are all sealed using butyl tape. It's basically just a putty that makes a seal between the trailer and whatever.

I replaced several items on my last trailer and used butyl tape to reseal them all as that was used by the manufacturer.

Correct .... normally caulk/sealants are only used as a secondary seal. While there might be others two other specific adhesive/sealants made for bedding fixtures are the 3M Marine 4000 and 5000 series Marine products which are my choices to use as a secondary caulk/sealant in addition to the normal butyl tape.

A final option to use in stead of butyl tape would be the double sided Eternabond tape.

Larry

I'd use a Geocel polymer sealant. They endure UV and weather greater than any other sealant I've used.

Most of the items stuck on from the outside such as the water inlets, power cord cover, etc., are all sealed using butyl tape. It's basically just a putty that makes a seal between the trailer and whatever.

I replaced several items on my last trailer and used butyl tape to reseal them all as that was used by the manufacturer.